MUST

be DECLARATIVE

2+(3*4) -> 2+12 -> 14

not

clear register d4 of the Motorola 68020, reset the ALU and the interrupt
handler, put 2 in register d0, 3 in register d1, 4 in register d2, then use
the microkernel instruction mul on d1 and d2, then use
add on d0 and d2